Dandy-roll



(No Model.)

J. J. SELLERS.

DANDY ROLL.

No. 362,790. Patented May 10, 1887.

WxyAv/Wm Nrrs STATES A TENT OFFICE.

JOSEPH J. SELLERS, OF PHILADELPHIA, PENNSYLVANIA.

DANDY-ROLL.

SPECIFICATION forming part of Letters Patent No. 362,790, dated May 10,1887.

Application filed July 30, 1886.

1'0 aZZ whom it may concern:

Be it known that I, JOSEPH J. SELLERS, a citizen of the United States,and a resident of Philadelphia, Philadelphia county, Pennsyl- Vania,have invented certain new and useful Improvements in Dandy-Rolls, ofwhich the following is a specification.

My invention relates to dandy-rolls; and it consists of a roll the frameof which is built up from a central continuous rod or shaft,heads,connecting-rods, and diagonal braces, as fully set forthhereinafter, so as to be strong, light, and rigid and free from amultiplicity of j oints.

In the drawings, Figure 1 is a longitudinal external View of adandy-roll frame embodying my improvements. Fig. 2 is a detached View ofthe central shaft or rod, an outer rod, and connecting-braces. Fig. 3 isa transverse section of the frame.

Dandy-rolls have heretofore been made without shafts which supported theheads, the bodies being sustained by the latter alone, but imperfectly,and being liable to sag and bend in use. Other rolls have been madewithout shafts, the bodies being supported and braced by diagonalbraces; but such rolls have proved inefficient because of iheirliabilityto twist and their lack of strength. Other rolls have been made withring-shaped braces and with shafts;

but these are heavy and their manufacture is expensive in consequence ofthe number of soldered joints, and the shaft does not support the heads,but supports the braces and outside longitudinal wires, which are inturn soldered to and support the heads.

To avoid the defects specified I construct a roll, using a continuouscentral shaft, which, in connection with radial braces, strengthens thestructure and prevents the sinking, twisting, or change of form of thecylinder.

A is the shaft; 13 B, the heads, which support between them aseries oflongitudinal rods or ribs, a, to which are soldered rings 0,supporting-wiresf, and upon the latter the wire gauze cylinder 2) issupported in the usual manner.

The structure is braced by means of diagonal braces e e, radiating fromthe shaft and arranged in pairs converging toward the periphery of thecylinder. These braces may be Serial No. 209,569. (No model.)

soldered or otherwise secured to the shaft and to the rods a; but Iprefer to form each line of braces from a single red, as shown in Fig.2, each end being bent up to form a radial brace, 3, and the remainingportion being bent to form pairs of converging braces c e andlongitudinal connecting-sections 4. The sections 4 may be soldered tothe shaft, or they may constitute, with a single light rod, 5, the shaftitself, which thus consists of a series of parts forming a very lightbut stiff support for the frame or body of the roll.

In the actual construction of the roll, as shown, I proceed as follows:The two wires a 5 are arranged parallel to each other a proper distanceapart, according to the size of the dandy-roll desired, and between thewires I solder a wire bent to form radial braces c e, as shown. I take anumber of these thus formed and solder the wire 5 to another wire, 8,and to each other in such a manner as to form the central shaft, withthe braces radiating from the center at equal distances apart.

To the inside edges of the wires a, and between each pair of radialbraces, I then solder rings 0, to which I in turn solder thelongitudinal wires f, forming additional supports for the wiregauzecylinder. Thus the shaft A, in connection with the radial braces, therings 0, and the longitudinal wires f, supports the heads B 13, whichare securely fixed thereto, thus forming a frame for the support of thewire-cloth. The frame thus constructed has but comparatively few joints,it is light in weight, the braces prevent any sagging of the body,whilethe rods support the gauze-cylinder, and the shaft to which all thebraces and the heads are connected effectually prevents the body fromtwisting.

WVithout limiting myself to the precise construction and arrangement ofparts shown, I claim 1. A dandy-roll frame consisting of a central rodor shaft, heads secured to the shaft, a series of rods, each bent toform a series of pairs of diagonal braces, e e, and connected with theshaft, rings 0, and longitudinal rods connected to the braces and to therings and heads, substantially as described.

2. The combination, in a dandy-roll, of a central continuous shaft,heads, longitudinal ribs extending between the heads, and radial braces3 and radial and diagonal braces e e, diagonal braces connectingtheshaft and rods, and all secured to the shaft and ribs,substansubstantially as described. tially as described.

3. The combination of the central rod, 5, In testimony whereof Ihavesigned my name 15 5 the series of rods, each bent to form a series of tothis specification in thepresence of two subradial braces, e e, andlongitudinal connectscribing witnesses. ing-sections 4, the latter andthe rod 'constitilting a compound shaft, and heads and con- JOSEPH J Enecting-ribs, substantially as described. Witnesses: 1o 4. Thecombination of the shaft, heads, ribs, WM. H. CHILDS,

and series of rods, each bent to form radial EDGAR ARMENT.

